Back to Understand trigonometric ratios — Problem 3 · Task Set 19

Exercises: Understand Trigonometric Ratios

Show your work for each problem. Round decimal answers to the nearest hundredth unless otherwise stated.

Grade 9·22 problems·~30 min·Common Core Math - HS Geometry·standard·hsg-srt-c-6

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Warm-Up: Review What You Know

These problems review skills you have already learned.

Right triangle $ABC$ has legs $AC = 5$ and $BC = 12$ and hypotenuse $AB = 13$ . Right triangle $DEF$ is similar to $\triangle ABC$ with hypotenuse $DE = 26$ . What is the ratio $\frac{EF}{DE}$ in triangle $DEF$ ? Express as a fraction.